Automatically-locking hairpin



j B. CA RL lSLE. AUTOMATICALLY LOC KING-HAIRPIN. APPLI CAT10N man MAY22, 1919.

1,357,271 I Patented Nov. 2, 1920.

, INVENTOR.

55/? TCAHL 151.5:

UNITED STATES BERT CARLISLE, OF SANTA. ANA, CALIFORNIA.

AUTOMATICALLY-LOCKING I-IAIRPIN.

Application filed May 22, 1919.

To all whom it may concern:

Be it known that 1, Beer OARLIsLn, a citizen of the United States,residing at Santa Ana, in the county of Orange and State of California,have invented new and useful Improvements in Automatically-Locl ingHan-pins, of which the following is a specification.

My object is to make an improved hair pin, and my invention consists ofthe novel features herein shown, described and claimed.

Figure l is a view in elevation of a hair pin embodying the principlesof my invention as seen looking in the direction indicated by the arrow1 in Fig 2.

Fig. 2 is a View in elevation at right angles to Fig. l as indicated bythe arrow 2 in Fig. l.

l igs. 3 4 and 5 are perspectives illustrating operations of the hairpin.

The hair pin is constructed of hard spring wire and comprises the legs 1and 2 extending from opposite ends of the coil 3. The hair pin is madeof a single piece of wire and the coil is at the center of the piece andconsists of substantially one and a half turns. The legs 1 and 2 aresubstantially mates.

The coil. 3 is bent far enough so that the legs 1 and 2 crosssubstantially at their centers and at the crossing point at the legspress together, and at the ends 5 and 6 the legs are spread apart, sothat when the hair pin is inserted into the hair a quantity ofSpecification of Letters Patent.

Patented Nov. 2, 1920.

Serial No. 298,980.

hair will pass between the points 5 and 6, and continued insertion ofthe hair pin will cause a rotary motion until the wisp 7 of hairwhichpassed between the points 5 and 6 lies in the space 8 adjacent tothe coil 3 and at the opposite side of the crossing point 4: from thepoints 5 and 6. y

In order to remove the hairpin from the hair it is necessary to overcomethe tension of the wire and press the legs 1 and 2 apart until the wispof hair 7 will pass the point i.

The legs 1 and 2 are perfectly smooth and straight, and the hair pindepends entirely upon the tension of the wire for its gripping quality.

i W hen it is desired to manually remove the hair pin from the hair thecoil 3 is grasped and turned a quarter turn and then the legs 1 and 2assume parallel positions wide enough apart for the wisp of hair to passfreely between the legs.

Various changes may be made without departing from the spirit of myinvention as claimed.

I claim A hair pin formed of hard spring wire comprising a central coilof substantially a turn and a half and straight legs extending from theends of said coil across each other, said coil maintaining said legs inspring contact with each other at their crossing point.

In testimony whereof I have signed my name to this specification.

BERT CARLISLE.

